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-rw-r--r--board/samus/battery.c301
1 files changed, 0 insertions, 301 deletions
diff --git a/board/samus/battery.c b/board/samus/battery.c
deleted file mode 100644
index bc73cbc1c3..0000000000
--- a/board/samus/battery.c
+++ /dev/null
@@ -1,301 +0,0 @@
-/* Copyright 2012 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- *
- * Battery pack vendor provided charging profile
- */
-
-#include "battery_smart.h"
-#include "charge_state.h"
-#include "console.h"
-#include "ec_commands.h"
-#include "extpower.h"
-#include "i2c.h"
-#include "util.h"
-
-static const struct battery_info info = {
- /*
- * Design voltage
- * max = 8.4V
- * normal = 7.4V
- * min = 6.0V
- */
- .voltage_max = 8700,
- .voltage_normal = 7400,
- .voltage_min = 6000,
-
- /* Pre-charge current: I <= 0.01C */
- .precharge_current = 64, /* mA */
-
- /*
- * Operational temperature range
- * 0 <= T_charge <= 50 deg C
- * -20 <= T_discharge <= 60 deg C
- */
- .start_charging_min_c = 0,
- .start_charging_max_c = 50,
- .charging_min_c = 0,
- .charging_max_c = 50,
- .discharging_min_c = -20,
- .discharging_max_c = 60,
-};
-
-const struct battery_info *battery_get_info(void)
-{
- return &info;
-}
-
-#ifdef CONFIG_CHARGER_PROFILE_OVERRIDE
-
-static int fast_charging_allowed = 1;
-
-/*
- * This can override the smart battery's charging profile. To make a change,
- * modify one or more of requested_voltage, requested_current, or state.
- * Leave everything else unchanged.
- *
- * Return the next poll period in usec, or zero to use the default (which is
- * state dependent).
- */
-int charger_profile_override(struct charge_state_data *curr)
-{
- /* temp in 0.1 deg C */
- int temp_c;
- const struct charger_info *info;
-
- /* keep track of last temperature range for hysteresis */
- static enum {
- TEMP_LOW,
- TEMP_NORMAL,
- TEMP_HIGH
- } temp_range = TEMP_NORMAL, prev_temp_range = TEMP_NORMAL;
-
- /* charging voltage to use at high temp */
- static int high_temp_charging_voltage;
-
- /* custom profile phase at normal temp */
- static int normal_temp_phase;
-
- /* battery voltage and current and previous voltage and current */
- int batt_voltage, batt_current;
- static int prev_batt_voltage, prev_batt_current;
-
- /*
- * Determine temperature range:
- * Low: Battery is <15C
- * Normal: Battery is 15-45C
- * High: Battery is >45C
- *
- * Add 0.2 degrees of hysteresis.
- * If temp reading was bad use last range.
- */
- if (!(curr->batt.flags & BATT_FLAG_BAD_TEMPERATURE)) {
- temp_c = curr->batt.temperature - 2731;
- if (temp_c < 149)
- temp_range = TEMP_LOW;
- else if (temp_c > 151 && temp_c < 449)
- temp_range = TEMP_NORMAL;
- else if (temp_c > 451)
- temp_range = TEMP_HIGH;
- }
-
- /*
- * Treat voltage and current as a pair, if either is bad fall back to
- * previous reading.
- */
- if (curr->batt.flags &
- (BATT_FLAG_BAD_VOLTAGE | BATT_FLAG_BAD_CURRENT)) {
- batt_voltage = prev_batt_voltage;
- batt_current = prev_batt_current;
- } else {
- batt_voltage = prev_batt_voltage = curr->batt.voltage;
- batt_current = prev_batt_current = curr->batt.current;
- }
-
- /*
- * If we are not charging or we aren't using fast charging profiles,
- * then do not override desired current and voltage and reset some
- * fast charging profile static variables.
- */
- if (curr->state != ST_CHARGE || !fast_charging_allowed) {
- prev_temp_range = TEMP_NORMAL;
- normal_temp_phase = 0;
- return 0;
- }
-
- /*
- * Okay, impose our custom will:
- * Normal temp:
- * Phase 0: CC at 9515mA @ 8.3V
- * CV at 8.3V until current drops to 4759mA
- * Phase 1: CC at 4759mA @ 8.7V
- * CV at 8.7V
- *
- * Low temp:
- * CC at 2854mA @ 8.7V
- * CV at 8.7V
- *
- * High temp:
- * If battery voltage < 8.3V then:
- * CC at 6660mA @ 8.3V
- * CV at 8.3V (when battery is hot we don't go to fully charged)
- * else:
- * CV at just above battery voltage which will essentially
- * terminate the charge and allow battery to cool.
- * Note that if we ever request a voltage below the present battery
- * voltage, then we will stop the BQ switching, which will power off
- * the INA and we won't be able to charge again until AC is
- * disconnected. see crbug.com/p/35491.
- */
- switch (temp_range) {
- case TEMP_LOW:
- curr->requested_current = 2854;
- curr->requested_voltage = 8700;
- break;
- case TEMP_NORMAL:
- if (normal_temp_phase == 0) {
- curr->requested_current = 9515;
- curr->requested_voltage = 8300;
- if (batt_current <= 4759 && batt_voltage >= 8200)
- normal_temp_phase = 1;
- }
- if (normal_temp_phase == 1) {
- curr->requested_current = 4759;
- curr->requested_voltage = 8700;
- }
- break;
- case TEMP_HIGH:
- /*
- * First time TEMP_HIGH is used, get the closest voltage
- * just above the battery voltage. If it is above 8.3V, we
- * will use that as the target, otherwise we will use 8.3V.
- */
- if (prev_temp_range != TEMP_HIGH) {
- info = charger_get_info();
- high_temp_charging_voltage = MAX(8300,
- charger_closest_voltage(batt_voltage +
- info->voltage_step));
- }
- curr->requested_current = 6660;
- curr->requested_voltage = high_temp_charging_voltage;
- break;
- }
- prev_temp_range = temp_range;
-
- return 0;
-}
-
-/* Customs options controllable by host command. */
-#define PARAM_FASTCHARGE (CS_PARAM_CUSTOM_PROFILE_MIN + 0)
-
-enum ec_status charger_profile_override_get_param(uint32_t param,
- uint32_t *value)
-{
- if (param == PARAM_FASTCHARGE) {
- *value = fast_charging_allowed;
- return EC_RES_SUCCESS;
- }
- return EC_RES_INVALID_PARAM;
-}
-
-enum ec_status charger_profile_override_set_param(uint32_t param,
- uint32_t value)
-{
- if (param == PARAM_FASTCHARGE) {
- fast_charging_allowed = value;
- return EC_RES_SUCCESS;
- }
- return EC_RES_INVALID_PARAM;
-}
-
-#ifdef CONFIG_CMD_FASTCHARGE
-static int command_fastcharge(int argc, char **argv)
-{
- if (argc > 1 && !parse_bool(argv[1], &fast_charging_allowed))
- return EC_ERROR_PARAM1;
-
- ccprintf("fastcharge %s\n", fast_charging_allowed ? "on" : "off");
-
- return EC_SUCCESS;
-}
-DECLARE_CONSOLE_COMMAND(fastcharge, command_fastcharge,
- "[on|off]",
- "Get or set fast charging profile");
-#endif /* CONFIG_CMD_FASTCHARGE */
-
-#endif /* CONFIG_CHARGER_PROFILE_OVERRIDE */
-
-#ifdef CONFIG_BATTERY_REVIVE_DISCONNECT
-/*
- * Check if battery is in disconnect state, a state entered by pulling
- * BATT_DISCONN_N low, and clear that state if we have external power plugged
- * and no battery faults are detected. Disconnect state resembles battery
- * shutdown mode, but extra steps must be taken to get the battery out of this
- * mode.
- */
-enum battery_disconnect_state battery_get_disconnect_state(void)
-{
- uint8_t data[6];
- int rv;
- /*
- * Take note if we find that the battery isn't in disconnect state,
- * and always return NOT_DISCONNECTED without probing the battery.
- * This assumes the battery will not go to disconnect state during
- * runtime.
- */
- static int not_disconnected;
-
- if (not_disconnected)
- return BATTERY_NOT_DISCONNECTED;
-
- if (extpower_is_present()) {
- /* Check if battery charging + discharging is disabled. */
- rv = sb_read_mfgacc(PARAM_OPERATION_STATUS,
- SB_ALT_MANUFACTURER_ACCESS, data, sizeof(data));
- if (rv)
- return BATTERY_DISCONNECT_ERROR;
- if (~data[3] & (BATTERY_DISCHARGING_DISABLED |
- BATTERY_CHARGING_DISABLED)) {
- not_disconnected = 1;
- return BATTERY_NOT_DISCONNECTED;
- }
-
- /*
- * Battery is neither charging nor discharging. Verify that
- * we didn't enter this state due to a safety fault.
- */
- rv = sb_read_mfgacc(PARAM_SAFETY_STATUS,
- SB_ALT_MANUFACTURER_ACCESS, data, sizeof(data));
- if (rv || data[2] || data[3] || data[4] || data[5])
- return BATTERY_DISCONNECT_ERROR;
- else
- /* No safety fault -- clear disconnect state. */
- return BATTERY_DISCONNECTED;
- }
- not_disconnected = 1;
- return BATTERY_NOT_DISCONNECTED;
-}
-#endif /* CONFIG_BATTERY_REVIVE_DISCONNECT */
-
-#define PARAM_CUT_OFF_LOW 0x10
-#define PARAM_CUT_OFF_HIGH 0x00
-
-int board_cut_off_battery(void)
-{
- int rv;
- uint8_t buf[3];
-
- buf[0] = SB_MANUFACTURER_ACCESS & 0xff;
- buf[1] = PARAM_CUT_OFF_LOW;
- buf[2] = PARAM_CUT_OFF_HIGH;
-
- i2c_lock(I2C_PORT_BATTERY, 1);
- rv = i2c_xfer_unlocked(I2C_PORT_BATTERY, BATTERY_ADDR_FLAGS,
- buf, 3, NULL, 0, I2C_XFER_SINGLE);
- rv |= i2c_xfer_unlocked(I2C_PORT_BATTERY, BATTERY_ADDR_FLAGS,
- buf, 3, NULL, 0, I2C_XFER_SINGLE);
- i2c_lock(I2C_PORT_BATTERY, 0);
-
- return rv;
-}
-
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